Abstract: Examples described herein relate to a supply valve consistent with the disclosure. For instance, a supply valve to supply print particles to a receptacle, the supply valve may comprise a print particle exit, a print particle entrance perpendicular to the print particle exit, and a liner adjacent to the print particle exit, where the liner is to wipe print particles, when present, from the supply valve responsive to the transition of the supply valve between a closed position and an open position.

Abstract: Disclosed is an atomizer that comprises a transparent, elongated e-liquid cartridge enclosed in a transparent, elongated outer cylinder that creates a well-defined smoke-flowing interlayer or pathway that leads from an atomization tube mounted on the distal end of the outer cylinder to a cigarette holder disposed at its proximal end. The atomization tube contains a heating coil in a porcelain cup in contact with an e-liquid rope or wick extruding from an e-liquid guiding head that seals the e-liquid cartridge at its distal end. Mounted on the atomization tube are two conductive members that connect with the heating coil and with an appropriate battery assembly containing an air-flow sensor that provides an electric charge when a smoker inhales. A smoker's inhalation also creates negative pressure within the interlayer pathway and the cartridge causing e-liquid to permeate the wick for vaporization. The resulting vapor or smoke travels to the cigarette holder and smoker via the interlayer.